Display screen with a graphical user interface



FIG. 1 is a front view of a first embodiment of a display screen with a graphical user interface, showing our new design; and,

FIG. 2 is a front view of a second embodiment of a display screen with a graphical user interface, showing our new design;

The outermost dual set of broken lines, outer circular features, and rounded rectangle illustrate an electronic device. The outermost broken line rectangle with square corners illustrates a display screen. The broken lines within the display screen illustrate portions of the graphical user interface. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 